Introduction to Computer
by Teedanai Pramanpol
1. Networks and the internet
1.1. A network is a collection of computers and devices connected together, often wirelessly, via communications devices and transmission media
1.1.1. New node
1.2. The Internet is a worldwide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals
1.3. A social networking Web siteencourages members to share their interests, ideas, stories, photos, music, and videos with other registered users
2. Computer sofeware
2.1. Software, also called a program, tells the computer what tasks to perform and how to perform them
2.1.1. System Software
2.1.1.1. Operration system
2.1.1.2. utility program
2.1.2. Application software
3. Personal computer
3.1. A personal computercan perform all of its input, processing, output, and storage activities by itself
4. Examples of computer usage
4.1. home user
4.2. small office/home office user
4.3. mobile user
4.4. power user
4.5. enterprise user
5. What is a computer?
5.1. A computer is an electronic device, operating umder the control of instruction stored in its own memory
6. The components of a computer
6.1. input device
6.1.1. New node
6.2. output device
6.3. system unit
6.4. storage device
6.5. communications device
7. Advantages and disadvantages of using computer
7.1. Advantage of using computer
7.1.1. speed
7.1.1.1. New node
7.1.2. reliability
7.1.3. consistency
7.1.4. storage
7.1.5. communications
7.2. Disadvantage of using computer
7.2.1. health risks
7.2.2. violation of privacy
7.2.3. public safety
7.2.4. impact on labor force
7.2.5. impact on environment